JPS5723638A - Preparation of heat insulating material with waste material of rigid polyurethane foam - Google Patents

Preparation of heat insulating material with waste material of rigid polyurethane foam

Info

Publication number
JPS5723638A
JPS5723638A JP8712280A JP8712280A JPS5723638A JP S5723638 A JPS5723638 A JP S5723638A JP 8712280 A JP8712280 A JP 8712280A JP 8712280 A JP8712280 A JP 8712280A JP S5723638 A JPS5723638 A JP S5723638A
Authority
JP
Japan
Prior art keywords
waste material
heat insulating
polyurethane foam
rigid polyurethane
catalyst
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8712280A
Other languages
Japanese (ja)
Other versions
JPH0144498B2 (en
Inventor
Kazuhiko Osaki
Masanobu Higuchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inoac Corp
Original Assignee
Inoue MTP KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inoue MTP KK filed Critical Inoue MTP KK
Priority to JP8712280A priority Critical patent/JPS5723638A/en
Publication of JPS5723638A publication Critical patent/JPS5723638A/en
Publication of JPH0144498B2 publication Critical patent/JPH0144498B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To obtain the titled heat insulating material, having heat insulating properties, strength, etc., and usable for building, etc., by mixing diphenylmethane diisocyanate, etc. with a pulverized waste material of rigid polyurethane foam, etc., and reacting and curing the resultant mixture in the presence of a catalyst by the compression under heating. CONSTITUTION:A waste material of rigid polyurethane foam is pulverized or cut to a diameter of about 20mm.phi or less. 100pts.wt. resultant chip-like waste material is then mixed with 7pts.wt. diphenylmethane diisocyanate MDI (n is 0) in a compound expressed by the formula (n is 0 or 0-2 or more) or crude MDI (n is a mixture of 0-2) as a binder and an aqueous solution of a water-soluble tertiary amine, e.g. triethylenediamine, as a catalyst at a weight ratio between the catalyst and the water of 1/10-1/50 by the spray coating for 30sec-5min. The resultant mixture is then introduced into a mold, compressed to a volume of 1/2-1/10 preferably under heating at 100 deg.C or above for 2min or longer, reacted and cured.
JP8712280A 1980-06-26 1980-06-26 Preparation of heat insulating material with waste material of rigid polyurethane foam Granted JPS5723638A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8712280A JPS5723638A (en) 1980-06-26 1980-06-26 Preparation of heat insulating material with waste material of rigid polyurethane foam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8712280A JPS5723638A (en) 1980-06-26 1980-06-26 Preparation of heat insulating material with waste material of rigid polyurethane foam

Publications (2)

Publication Number Publication Date
JPS5723638A true JPS5723638A (en) 1982-02-06
JPH0144498B2 JPH0144498B2 (en) 1989-09-28

Family

ID=13906144

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8712280A Granted JPS5723638A (en) 1980-06-26 1980-06-26 Preparation of heat insulating material with waste material of rigid polyurethane foam

Country Status (1)

Country Link
JP (1) JPS5723638A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05309753A (en) * 1990-12-20 1993-11-22 Asaoka Kk Fiber-reinforced plastic molded body with disposed fiber-reinforced plastics as filler and manufacture thereof
US5672631A (en) * 1991-04-24 1997-09-30 Pauls; Mathias Method for processing packaging remnants with recovery of materials
US5814674A (en) * 1992-04-23 1998-09-29 Rathor Ag Method for processing residue-containing packages
US5958988A (en) * 1995-11-09 1999-09-28 Toyota Jidosha Kabushiki Kaisha Cross-linked polyurethane resin powder and process for producing the same
GB2473426A (en) * 2009-09-04 2011-03-16 Michael John Smith Waste plastics material for moulding building components

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4969783A (en) * 1972-10-26 1974-07-05
JPS5142751A (en) * 1974-10-02 1976-04-12 Ici Ltd
JPS5228576A (en) * 1975-08-29 1977-03-03 Toyo Rubber Chemical Ind Co Process for regenerating disposed hard foamed urethane

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4969783A (en) * 1972-10-26 1974-07-05
JPS5142751A (en) * 1974-10-02 1976-04-12 Ici Ltd
JPS5228576A (en) * 1975-08-29 1977-03-03 Toyo Rubber Chemical Ind Co Process for regenerating disposed hard foamed urethane

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05309753A (en) * 1990-12-20 1993-11-22 Asaoka Kk Fiber-reinforced plastic molded body with disposed fiber-reinforced plastics as filler and manufacture thereof
JPH06102364B2 (en) * 1990-12-20 1994-12-14 アサオカ株式会社 Fiber-reinforced plastic molded product using discarded fiber-reinforced plastic as a filler and method for producing the same
US5672631A (en) * 1991-04-24 1997-09-30 Pauls; Mathias Method for processing packaging remnants with recovery of materials
US5814674A (en) * 1992-04-23 1998-09-29 Rathor Ag Method for processing residue-containing packages
US5958988A (en) * 1995-11-09 1999-09-28 Toyota Jidosha Kabushiki Kaisha Cross-linked polyurethane resin powder and process for producing the same
GB2473426A (en) * 2009-09-04 2011-03-16 Michael John Smith Waste plastics material for moulding building components

Also Published As

Publication number Publication date
JPH0144498B2 (en) 1989-09-28

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